@vampire0 The problem comes down to modern versions of SystemD have changed the locking mechanism they use for updated /etc/passwd and likely other files. They are hard-coded now to use the Linux-specific `fcntl(F_OFD_SETLKW)` instead of the older, POSIX-compliant `fcntl(F_SETLKW)`. While the latter is implemented under WSL1, albeit as a no-op it seems, they don't implement the former and instead return the EINVAL errno. This causes all uses of `systemd-sysusers` in various post-install scripts in Debian packages to throw an error and fail to finish their upgrade.
I have been able to workaround it by modifying each postinst script that calls `systemd-sysusers` in /var/lib/dpkg/info/*.postinst to ignore errors on the call to systemd-sysusers. I added `|| true` to the end of each line running that command. This allowed all the post-install scripts to print out the error, but otherwise proceed and complete successfully as far as `dpkg` is concerned. The users, however, were not created and it's possible some services are broken, but I have not seen any issues yet. They can be manually created latter if needed. The only real fix for this issue is a modified systemd package which changes the locking mechanism to one that is supported (or claims to be supported) by WSL1. A change of the ofd argument from `true` to `false` of the calls to `fcntl_lock()` inside `unposix_lock()` and `unposix_unlockpp()` in the file src/basic/lock-util.c should do it. A slightly better patch would be to have it detect the lack of support for F_OFD_SETLKW or WSL1 and fallback to the other locking mechanism. -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/2069555 Title: Failed to take /etc/passwd lock: Invalid argument on upgrade To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/systemd/+bug/2069555/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
